CVE-2009-2666

EPSS 0.66%

fetchmail - SSL certificate verification weakness

Published: 8/7/2009Modified: 4/28/2026

Also known as:DEBIAN-CVE-2009-2666

Description

socket.c in fetchmail before 6.3.11 does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Affected packages (2)

Debian/fetchmailfrom 0, < 6.3.9~rc2-6
Debian/fetchmailfrom 0, < 6.3.6-1etch2

References (1)

ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2009-2666